Need help badly fuel leak at carb

[boats]

This just started today. When i have my air breather off and I run the engine fuel starts to bubble out of the 2 holes on top of the carb. Stock Motorcraft 2 barrel. I took the top off and removed the float and needle and sprayed some carb cleaner down it. No luck. When its running with me giving gas no leak but as soon as I let off the gas to idle fuel starrts pouring out of the holes. Thanks for any help not sure what to do next.
Thanks,
Hall

 

[Skuzzlebutt]

It sounds like the floats are not closing the fuel valve. Could be the valve is stuck open, or the floats need adjusting, or...?

 

[Bronco Sport]

That's very typical of the stock 2bbl carb. You will most likely need to rebuild the carb. Thta's how I'v fixed mine in the past when it's done that if using carb clean doesn't work. Good luck, at least the rebuild kit is cheap.

 

[boats]

Thanks for the help. Is it easy enough to rebuild myself or is it cheap enough to leave to the pros.

 

[$$PIT]

Try it yourself 1st. The kits are cheap and the labor isn't difficult. If it still doesn't fix the problem then you can go to plan B.

 

[kwspony]

depending on how old the carb is you may want to consider having the throttle shaft bushings replaced. That has to be done at a shop. The get old and develope vacuum leaks after awhile. Best way to check is at idle, spray carb cleaner on the housing at the throttle shaft. If the idle goes up or smooths out then have them replaced. May be hard to do if it overflows at idle though.

 

[thedirtyneck]

Mine was doing the same thing. I rebuilt it and everything is good to go now. You can do it yourself no problem. The motorcraft 2bbl is probably one of the easiest carbs to work on.

Check this link out for lots of good info about the carb.

http://home.earthlink.net/~bubbaf250/2150carb/carb01.html

Good luck

Brian

Oh and I would buy a new float while your at it.

 

[wildbill]

%) %) %) Take the top off the carb and clean or replace the needle seat and make sure that the float is not sinking and you should be good to go. Bill %) PS replace fuel filter

 

[boats]

Thanks for the thoughts I'm going to go ahead and rebuild.

 

[Bronco Sport]

Also make sure you take the carb body to a parts shops that can tank and blow it out for you. Just to make sure it's cleaned out.